Role of Lorentz force and nanoparticles morphology on the dynamics of ternary hybrid nanofluid flow subject to porous disks and gyrotactic microorganisms

Abstract

This article explains the significance of Lorentz force and nanoparticle morphology on the dynamics of ternary hybrid nanofluid through porous disks. The gyrotactic microorganisms are investigated to avoid possible sedimentation of solid particles and maintain fluid stability. A 3-dimensional flow problem in the presence of two different types of tri-hybrids nanofluid nanomaterials (Metallic and Nonmetallic Oxides) is used here. By eliminating the pressure term, the governing partial differential equations are transformed into a high-order nonlinear system of differential equations. This system is subsequently utilized to construct the boundary layer model, and these equations are solved numerically using a shooting technique based on the Runge–Kutta method, with the assistance of MATLAB software. The comparison and validation results are in good agreement through a numerical approach. Different-shaped nanoparticles have a significant influence on motile microorganisms. Shear stress near porous surfaces was significantly reduced due to an increase in nanoparticle size. The addition of all types of nanoparticles improved the thermal performance. Many desirable results for engineering purposes are observed under suitable conditions of simultaneous effect of magnetohydrodynamics (MHD) with microorganisms.